It would be good if investors in solar PV could hold out to make DECC look at their policy, however by consultation most will not have bread on their table, DECC have gone one step to far with EPC, this is in my opinion not down to installers or consumers this is down to the fact that EPC has not been made simple for either consumer and installer.
Those that want the benefit of solar are those that have high energy bills meaning EPC is probably low, DECC has not got a clue what the industry needs, by cutting the feed in tariff alone and introducing the aggragate clause meant that solar installs are feasible for some, EPC means very little for all.